Term
| What are the two most important developments in fish evolution? |
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Definition
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Term
| Class Agnatha consists of what type of fish? |
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Definition
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Term
| What are some characteristics of Class Agnatha? |
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Definition
| Have no jaws and no scales |
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Term
| Whay types of fishes make up Class Chondrichthyes? |
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Definition
| Cartilaginous fish, such as sharks and rays |
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Term
| What is the difference between a heterocercal and homocercal tail? |
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Definition
| A heterocercal tail is long and thin, such as a common shark tail. A homocercal tail has an even groove, like that on a regular fish. |
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Term
| What is the purpose of the lateral line? |
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Definition
| It helps sense vibrations in the water. |
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Term
| What type of fish does the Class Osteichthyes consist of? |
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Definition
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Term
| Where are the scales located on bony fishes? |
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Definition
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Term
| What is the purpose of slime on a fish? |
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Definition
| It provides protection from infection, since it contains antibacterial enzymes. |
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Term
| What are the two puropses for having special colorization? |
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Definition
1. Camoflauge
2. Bright colors attract mates |
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Term
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Definition
| When the top of a fish is dark to blend in with the water when looked at from above, and the underside is lighter to camoflauge it with sunlight coming from above. |
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Term
| Name the location, funtion, number, and type of fin: CAUDAL FIN |
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Definition
| Tail, speed swimming, 1, ray |
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Term
| Name the location, funtion, number, and type of fin: PECTORAL FIN |
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Definition
| Base of gills on side, fan water, 2, ray |
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Term
| Name the location, funtion, number, and type of fin: PELVIC FIN |
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Definition
| Ventral side on base of osculum, fan water, 2, spine/ray |
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Term
| Name the location, funtion, number, and type of fin: ANAL FIN |
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Definition
| Base of tail near anus, rudder/keel, 1, spine/ray |
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Term
| Name the location, funtion, number, and type of fin: DORSAL FINS |
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Definition
| Top of fish, defense against predators and balance, 2, spine/ray |
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Term
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Definition
| On certain fish, it is an extra appendage near the dorsal fins that stores oils. |
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Term
| What is the purpose of the liver? |
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Definition
| It makes bile, which helps digest fats and break down poisons |
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Term
| What is the pyloric caeca? |
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Definition
| The finger-like area for food that has already been digested by the stomach that breaks it down evern further by using extra strong enzymes |
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Term
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Definition
| Thin tissues with ridges on the exterior that is part of respiratory diffusion and also pulls in minerals such as salt. |
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Term
| What are the kidneys' functions? |
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Definition
| To clean ammonia waaste then pass it to the cloaca as urine, and to balance the amount of water in blood |
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Term
| In what order does blood pump through the heart (name 6 parts)? |
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Definition
| Cardinal vein, sinus venosus, atrium, ventricle, bulbus arteriosus, ventral aorta |
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Term
| What does the sinus venosus do? |
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Definition
| Oxygen-poor blood is collected here |
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Term
| What is the purpose of the atrium? |
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Definition
| It is the first heart chamber which directs blood in a one-way passage |
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Term
| What is the function of the ventricle? |
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Definition
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Term
| What does the bulbus arteriosus do? |
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Definition
| It moves blood forward and towards the gills |
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Term
| What does the bulbus arteriosus do? |
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Definition
| It moves blood forward and towards the gills |
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Term
| What is the ventral aortas' function? |
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Definition
| It's the main artery that pushes blood to the afferent brachial arteries |
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Term
| What are the afferenct and efferent brachial arteries? |
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Definition
| Gill capillaries that absorb the oxygen that passes through the gills |
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Term
| What is the hepatic portal vein? |
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Definition
| Vein that carries blood through the liver |
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Term
| From anterior to posterior, what is the order of brain parts? |
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Definition
| Olfactory lobe, cerebrum, optic lobes, cerebellum, medula oblongata, spinal chord |
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Term
| What is the olfactory lobes' purpose? |
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Definition
| Interprets sense of smell |
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Term
| What are the optic lobes' functions? |
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Definition
| Vision sensors that note color and reflect the image that the eye receives |
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Term
| What is the medula oblongata? |
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Definition
| Portion that controls unconcious thought such as an automatic nervous system, and homeostasis |
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Term
| What is the cerebellum for? |
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Definition
| Coordination and muscle response |
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Term
| What is the cerebrum for? |
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Definition
| Takes and processes information; behavior |
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Term
Define the following:
1. Viviporous
2. Oviporous
3. Ovoviviporous |
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Definition
1. Embryo remains in mother's body and obtains nutrients from the mother... NOT from a yolk sac
2. Young who are hatched from eggs outside of mother's body and feed off of yolk
3. Young that remain as eggs feeding off of yolk INSIDE mother's body (born alive) |
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